Read the following pas...

Câu hỏi: Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions 12–19.

A. Human activity and its impact on a mass extinction of species

B. The two ways in which species disappear

C. The tempo of extinction of species today

D. Deforestation as a major cause of mass extinctions of species